Using distortion shaping technique to equalize ADC THD performance between ATEs
Peter Sarson, Haruo Kobayashi · 2016
This paper describes how using a phase switching technique can produce a low distortion signal from an Arbitrary Waveform Generator (AWG), and how this technique aligns the performance of the AWGs between testers, to evaluate the Total Harmonic Distortion (THD) performance of Analogue-to-Digital Converters (ADCs). Once a device has been characterized and correlated to the bench, the test engineer needs to start the release procedure in getting the device into a production ready state. One major issue that a test engineer faces is the difference in ADC THD performance test results using the same Automated Test Equipment (ATE) manufacture testers (AWGs). This paper will then show how the Gauge Repeatability and Reproducibility (GRR) between testers can be produced more easily allowing less stringent guard-bands to guarantee the performance of those devices that have performance criteria close to the device specification. This work will also go some way to proving previous papers' works on distortion shaping testing to enhance the spectral performance of Arbitrary Waveform Generators.